FSXA How to make waterpoly have flowing effects?

#1
Hi,

I'm now having a waterpoly data complied to Legacy_LandWaterMask_Water_NoFlatten and it successfully works.However,I find that where it defined the water just shows a general water,it does not have a flowing water effect.So,on some steep spots,the water is not showed naturally at all.This problem is really a mess.Is there any solutions?Is this problem affect every waterpoly or only Legacy_LandWaterMask_Water_NoFlatten,in other words,should I use 3D WaterPoly?Or this is a inherent problem for all waterpoly in FS?
 
#2
Hello:

Legacy_LandWaterMask_Water_NoFlatten uses the "Legacy" FS9 water display provided as a pick-list choice within ex: SBuilderX, only when the "Modified Terrain.Cfg" file is used.


FYI: "Legacy" FS9 water display is distinct from that of the default FSX water provided via:

[FSX install path]\livingwater.dll


If you instead create water polygons using default FSX / P3D CVX vector Hydro polygon types, you should see the "moving wave activity" subject to the considerations mentioned by Holger in this thread:

http://www.fsdeveloper.com/forum/threads/photoscenery-blended-at-coast-suppresses-3d-waves.438869/


Hope this helps ! :)

GaryGB
 
#3
Hello:

Legacy_LandWaterMask_Water_NoFlatten uses the "Legacy" FS9 water display provided as a pick-list choice within ex: SBuilderX, only when the "Modified Terrain.Cfg" file is used.


FYI: "Legacy" FS9 water display is distinct from that of the default FSX water provided via:

[FSX install path]\livingwater.dll


If you instead create water polygons using default FSX / P3D CVX vector Hydro polygon types, you should see the "moving wave activity" subject to the considerations mentioned by Holger in this thread:

http://www.fsdeveloper.com/forum/threads/photoscenery-blended-at-coast-suppresses-3d-waves.438869/


Hope this helps ! :)

GaryGB
Thank you.:)I now have learned that Legacy_LandWaterMask_Water_NoFlatten is a FS9 water polygon,it did not act as the same as the FSX water polygon in simulation.Maybe it's only used for backward compatibility,and it's
not advised by FSX. The FSX water polygons,as we see in SDK documents,are carrying more information on how to show and render the water so that it's more realistic.

However,I do not know much about how the FSX water waves appears.Are their waves affected by only winds or also gravity(altitude) factors?The gravity(altitude) factors are more important for me,I think.
The 2D water polygons are easy to convert to 3D ones with DEM,but the Slope parameters are not easy to create.Since the 3D polygon have all information about a water,what are Slope parameters used for?
I have read some posts in which people said that I can simply let them to be 0,is this affect the waves? Is the gravity(altitude) factor identified by FSX by Slope parameters or only 3D data in shape(*.shp) files?
 
#4
Hi again:

Regarding dynamic changes in wave display, this reportedly can be achieved somewhat in FSX via DX10 preview mode, and has been more extensively developed in P3Dv2.x and P3Dv3.x.

https://www.google.com/#q=FSX+wave+wind



FSX CVX vector "Hydro" polygons most often are 'sloped' via assignment of "Altitude" in Feet or Meters AMSL to polygon vertex coordinate values


FSX CVX vector "Hydro" polygons can also be 'sloped' via assignment of a floating point "Slope" value, originally stated by ACES' Doug Matthews to require a 13-decimal place number for use with the placement coordinate vertices of such polygons (ex: X.xxxxxxxxxxxxx)

AFAIK, that subsequently was also reported to 'work' if one merely used a 6-decimal place number (ex: X.xxxxxx) as a "Slope" value

IIRC, there were also reports that one could get the "Slope" parameter to work by using a single numeral of "0" (zero) after the decimal point (ex: X.0)


A particularly informative discussion of these considerations is here:

http://www.fsdeveloper.com/forum/threads/correcting-many-elevated-lakes-in-the-andes.435147/



The SDK documentation for the CVX vector object compiler SHP2VEC is here:

https://msdn.microsoft.com/en-us/library/cc707102.aspx#TheShp2VecTool

https://msdn.microsoft.com/en-us/library/cc526968.aspx



...Some additional links:

https://www.google.com/#q=site:www.fsdeveloper.com+hydro+slope+floating+point



BTW: Allen Kreisman of Scenery Solutions (Ultimate Terrain products) and Holger Sandmann have considerable experience using the "Slope" parameter in scenery creation; perhaps Holger might offer some additional insights on this somewhat 'under-documented' aspect of the FS Terrain SDK ? :teacher:


FYI: An interesting tutorial on "How To Create Sloped Polys in SBuilderX" ...is here: :idea:

http://return.mistymoorings.com/faq/files/Sloped Poly Tutorial v2.0.pdf


GaryGB
 
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